1z0-808 試験問題を無料オンラインアクセス

Given:

How many objects have been created when the line / / do complex stuff is reached?

• A.Six
• B.Three
• C.Four
• D.Two

Given:
class Base {
public static void main(String[] args) {
System.out.println("Base " + args[2]);
}
}
public class Sub extends Base{
public static void main(String[] args) {
System.out.println("Overriden " + args[1]);
}
}
And the commands:
javac Sub.java
java Sub 10 20 30
What is the result?

• A.Overridden 20
  Base 30
• B.Base 30
  Overridden 20
• C.Base 30
• D.Overridden 20

Given:
class Base {
// insert code here
}
public class Derived extends Base{
public static void main(String[] args) {
Derived obj = new Derived();
obj.setNum(3);
System.out.println("Square = " + obj.getNum() * obj.getNum());
}
}
Which two options, when inserted independently inside class Base, ensure that the class is being properly encapsulated and allow the program to execute and print the square of the number?

• A.protected int num; private int getNum() { return num; } public void setNum(int num) { this.num = num;}
• B.protected int num; public int getNum() { return num; } public void setNum(int num) { this.num = num;}
• C.private int num;public int getNum() {return num;} private void setNum(int num) { this.num = num;}
• D.public int num; protected public int getNum() { return num; }protected public void setNum(int num) { this.num = num;}
• E.private int num; public int getNum() { return num; }public void setNum(int num) { this.num = num;}

Given:

And given the code fragment:

What is the result?

• A.10:20
• B.Compilation fails at line n2.
• C.20:20
• D.Compilation fails at line n1.

View the exhibit.

Given the code fragment:

Which change enables the code to print the following?
James age: 20
Williams age: 32

• A.Enclosing line 6 and line 7 within a try block and adding:
  catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}
• B.Replacing line 5 with public static void main (String [] args) throws MissingInfoException, AgeOutofRangeException {
• C.Replacing line 5 with public static void main (String [] args) throws.Exception {
• D.Enclosing line 6 and line 7 within a try block and adding:
  catch(Exception e1) { //code goes here}
  catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}